This is the smartest AI in the world,” Musk said. He did not mention the chatbot’s viral posts praising Hitler and calling itself “MechaHitler.”

Built using huge amounts of computing power at a Tennessee data center, Grok is Musk’s attempt to outdo rivals such as OpenAI’s ChatGPT and Google’s Gemini in building an AI assistant that shows its reasoning before answering a question.

Grok, Elon Musk’s AI chatbot, has praised Hitler, dabbled in Holocaust denialism and ranted about “white genocide” in South Africa. That’s happening because of Grok’s instructions and training material,

Less than a month after its debut in Austin, Elon Musk's Tesla robotaxi service is poised to expand its operations around the Texas capital, while adding a controversial new feature to its services. On Wednesday,

Discover 10 key insights about Grok 4, the groundbreaking AI model from Elon Musk. Features, challenges and future impact.

Earlier today, Grok showed me how to tell if someone is a “good scientist,” just from their demographics. For starters, according to a formula devised by Elon Musk’s chatbot, they have to be a white, Asian, or Jewish man.

Developer and entrepreneur David Ondrej demonstrates Grok 4, xAI's latest AI mode. It outperforms competitors like OpenAI, Anthropic, Meta, and Google on

AI's latest Grok 4 large language model appears to search for owner Elon Musk's opinions before answering sensitive questions about